421870814571 has 8 divisors (see below), whose sum is σ = 563452674624. Its totient is φ = 280768082120.

The previous prime is 421870814569. The next prime is 421870814581. The reversal of 421870814571 is 175418078124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421870814571 - 2¹ = 421870814569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421870814571.

It is not an unprimeable number, because it can be changed into a prime (421870814581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119779845 + ... + 119783366.

It is an arithmetic number, because the mean of its divisors is an integer number (70431584328).

Almost surely, 2^421870814571 is an apocalyptic number.

421870814571 is a deficient number, since it is larger than the sum of its proper divisors (141581860053).

421870814571 is a wasteful number, since it uses less digits than its factorization.

421870814571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239563801.

The product of its (nonzero) digits is 501760, while the sum is 48.

The spelling of 421870814571 in words is "four hundred twenty-one billion, eight hundred seventy million, eight hundred fourteen thousand, five hundred seventy-one".